AD 70-23-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 747-100 Series | BOEING Model 747-100 Series Airplanes |
Unsafe Condition
Failures of the spindle nut
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Required Actions
Replace the wing gear upper side strut spindle nut in accordance with Boeing Service Bulletin 32-2055 dated October 2, 1970, or later FAA approved revision, or an equivalent method approved by the Chief, Aircraft Engineering Division, FAA Western Region.
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Compliance Time
within the next 200 hours' time in service after the effective date of this ad
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Affected Aircraft
Boeing Model 747-100 Series airplanes certificated in all categories
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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